Going to japan

Hi I'm planning a trip to Japan. I'm looking at visiting some of the local fish stores. Can anyone recomend some in or close to Tokyo? I've seen the web site for aqua bonito which looks awesome but I can't seem to find many more good ones. Thanx for any info.

Am I too nasty to ask you to send some links by Private Message?Am working at a Japanese firm, and might be possible to travel there for training. Since weekend included, I would like to make the most of it.